Roller-bearing



(No Model.) r 2 sheetssheet 41,.`

D. W.00PBLAND. ROLLER BEARING.

NO. 496,348. Patented Ap1. 25, 1893.,

(No Model.) 2 Sheets-Sheet 2.

D. W. COPELAND.

ROLLER BEARING'.

No. 496,348. Patentedpr. 25, 1893.

wlNEssEs ONvENToR rfv," l f g fuwf/ /Q/ ATTORNEYs UNITE S'rrrrnsy PATENT' OFFICE.

DAVID WV. OOPELAND, OF SYRAOUSE, NEW YORK.

ROLLER-BEARING.

SPECIFICATION forming part of Letters Patent No. 496,348, dated April 25, 1893.

Application filed November 5, 1892. Serial No. 451,086. (No model.)

To all whom it may concern.-

Be it known that I, DAVID W'. OOPELAND, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in RolIer-Bearings,of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

My invention relates to improvements in journal bearings or boxes of the class set forth in my application, Serial No. 486,416, filed June 13,1892, and it has for its object the production of a simple, practical, durable, and efficient construction, in which the amount of slip and rattle of the rollers is greatly reduced; and to this end it consists, essentially, in an outer casing provided with an annular rib projecting from its inner face, anti friction rollers having bearing faces of greater width than the bearing face of said rib, the roller bearing faces being normally separated from the inner face of the casing, and being each provided with a groove for receiving the bearing rib, and bands encircling the corresponding ends of said rollers.

The invention furthermore consists in the detail construction and arrangement of the parts, all as hereinafter more particularly described and pointed out in the claims.

In describing this invention, reference is had to the accompanying drawings, forming a part of this specification7 in which, like letters indicate corresponding parts in all the views.

Figure l is an elevation, partly in section, of my improved bearing or box, a portion of an axle being shown in operative position therein. Fig. 2 is a transverse vertical sectional view, taken on line -2-2-, Fig. l, the bearing end wall shown in section at Fig. l being removed for the purpose of more clearly illustrating the adjacent bearing rib of the casing. Fig. 3 is a transverse vertical sectional view, taken on line,-3 -3-, Fig. l, the divider being shown in elevation. Fig. 4 is an elevation of an enlarged portion of the band for encircling the outer ends of the antifriction rollers of my improved bearing or box. Fig. 5 is an elevation of the detached divider for separating the contiguous faces of the anti-friction rollers. Fig. 6 is atransverse vertical sectional view similar to Fig.'2, a

slightly modified form of encircling band for the rollers being' illustrated. Fig. 7 is an elevation of an enlarged portion of the encircling band shown at Fig. 6. Fig. 8 is a similar view to Fig. l, illustrating the annular rib of the bearing casing as formed of rounding cross section and the groove in the rollers as formed of corresponding cross'section. Fig. 9 is a transverse vertical sectionalview, taken on line -9-9-, Fig. 8, the adjacent end Wall of the casing being removed; and Fig. 10 is a vertical sectional view, taken on line -10-10-, Fig. 8, the divider being shown in elevation.

My improved bearing or box consists of an outer casing -A composed of enlarged end heads -c-ahaving annular shouldersY dL-- at their outer edges, a contracted central portion -d3-, and removable end Walls -a4- a4- for the heads -a-a-. One extremity of the contracted central portion --a3- of the casing -A- is fixed to the adjacent head -aand the other extremity thereof is formed with screw-threads a5- which engage a screw-threaded socket a6- in the inner Wall of the head -a/-. The end walls -ct-ct-'areeach formed with a screw-threaded ange -ct7-, which enters the screw-threaded outer ends of the casing heads -c-a, and by turning said end Walls, they are readily disengaged from the casing for permitting accessvto its interior, or are quickly replaced in operative position.

The construction of my improved bearing, here illustrated, is particularly designed for use in carriage hubs which are formed in the usual manner with a suitable opening therethrough for receiving the bearing. It will, therefore, without the aid of an illustration of a carriage hub, be readily understood, by one skilled in the art, that one section of the bearingis forced to its operative position from one side of the hub until'its shoulder a2- bears against the outer face of said hub, and that the other section is caused to enter the opposite end of the opening in the hub and is then screwed upon the adjacent end of the contracted central portion of the bearing until its shoulder a2- bears against the outer face of the opposite end of the hub.

B- is an axle having a portion thereof journaled in my improved bearing, and, asis IOO evident, this axle may be of the ordinary or any other suitable form, size, and construction. The axle -B- is, however, preferably provided with a shoulder -B- for bearing against the depressed outer face "asof the inner end wall a4- of the casing A -C- is a bearing rib projecting from the inner face -a9- of each of the enlarged heads -a-aof my improved bearing casing -A-, but, as but one-half of this bearing is shown in section, only one of said ribs is illustrated. These ribs are preferably formed with a bearing face we# of angular cross section, and are each provided upon a ring "0- within the corresponding head of the bearing, in order that when the rib is worn, the ring may be readily removed and replaced with a new one. It is evident, however, that this ring, which is prevented, as presently described, from revolution within the casing, forms essentially a portion of said outer easing, and that its inner face is essentially the inner face of the corresponding casing head and consequently I have, throughout the specification and claims, described the ribs -C- as projecting from the inner face of the outer casing.

The inner face ol each of the rings *CL- bears against an annular shoulder -ctwprovided upon the inner face -a"- of the corresponding enlarged casing heads, and its outer face is engaged bythe inner faceof the iiange -a7, which is formed upon the corresponding end wall -a4- and serves to clamp the ring C- against the shoulder awand prevent the revolution of said ring -C-.

-D- represents anti-friction rollers, which encircle the adjacent portions of the axle -B- and are each formed with a bearing face dof greater width than the bearing face -cof the corresponding bearing rib -C- and are provided with the groove d'- of slightly greater width than the rib -C for receiving said rib.

The rib -C- projects from the inner face ot' the casing -A- a greater distance than the depth ot' the groove -cZ'-, and, as said rib bears against the face of the contracted portion mD'-- of the rollers `D-, the bearing face d of said rollers is separated from the face ot' the adjacent portion of the easing -A-. Consequently, the amount of slip of the rollers is reduced to aminimum as the contracted bearing face D of the rollers engaged with the rib -C-, is considerably nearer the axis of the axle -B- than the outer portion ot' the bearing face -(Z of said rollers, which would otherwise be engaged with the casing. Moreover, the axle I3- bears against a bearing face of the rollers --1)- of greater diameter than the faces of said rollers against which bears the face -cof the corresponding rib -C The contiguous faces of adjacent rollers -D-D are separated by a suitable divider -E-, Figs. 2, 3, 4, and 5, which is provided with a series of arms -eformed with contracted central portions -eand adapted to enter the grooves in the rollers.

Rattling of the rollers D is prevented by a band -F-, which encircles said rollers and holds them in engagement with the axle -B-. I preferably use two bands for each series of rollers, and, as illustrated, arrange them on opposite sides of the rib (1- upon the corresponding opposite ends of the rollers -D-. This preferable form of band consists of a metallic strip bent into substantially a circular form, and having its opposite ends -flapped one upon the other, and formed, respectively, with a rounded inner face -fL- and a rounded outer face -f3-, whereby catching of said ends by the rollers encircled thereby, or by the 4adjacent faces of the casing is entirely prevented. Since the band -F- is formed of spring metal, its ends are free to move upon each other as the rollers become worn, or as they move slightly j from their normal position to prevent eramp` ing of the axle. This slight adjustable movement of the rollers is permissible for the reason that the grooves -dare slightly wider than the wid th of the bearing face -c` of the ribs -C-. It will be understood, however, that the band -F- may be formed of any suitable material, and that if desired, it may be composed of rawhide, leather, or rubber capable or more or less expansion, and consequently, I have, at Fig. G, shown a modified form of said band formed of an eXpansible strip having its adjacent ends firmly secured together at 4-.

In cases where it is desired that the rollers --D- may be capable of automatically adj usting themselves to a greater degree than permitted when the bearing face -cof the rib -C- is angular in cross seetion,and the grooves d. of the rollers D for receiving said rib is correspondingly formed and' but slightly wider than the bearing face of the rib, I form the bearing face -cmof the said rib C10 of rounding cross section and also form the grooves of the rollers -D- of rounding cross section as best seen at Figs. 8, 9, and lO.

The parts of my invention are simple in construction, easily assembled, and replaced, and the entire device is a highly eflicient and durable journal box in which the slip and rattling of the rollers are reduced to a minimum. It will be understood, however, that the detail construction and arrangement ol' the parts of my invention may be somewhat changed from that shown and described without departing from the spirit thereof.

It will be understood that I do not herein claim specifically the structure set forth in my application Serial No. 436,416 filed June 13, 1892.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The herein described roller bearing, the

IOO

IIO

same comprising an outer casing provided with an annular rib projecting from its inner face, and anti-friction rollers having bearing faces of greater Width than the bearing face of said rib, the roller bearing faces being normally separated from the inner face of the casing and being each provided With a groove for receiving the bearing rib, substantially asl and for the purpose set forth.

2. The herein described roller bearing, the same comprising an outer casing provided with an annular. rib projecting from its inner face, anti-friction rollers having bearing faces of greater widththan the bearing face of said rib, the roller bearing faces being normally separated from the inner face of the casing and being each provided with a groove for receiving the bearing rib, and a divider for separating the adjacent faces of said rollers substantially as and 'for the purpose specified.

3. The hereindescribed roller bearing, the same comprising an outer casing provided With an annular rib projecting from its inner face, anti-friction rollers having bearing faces of greater Width than the bearing face of said rib, the roller bearing faces being normally separated from the inner face of the casing and being each provided with a groove for receiving the bearing rib, and a band encircling the corresponding ends of said rollers, substantially as and for the purpose set forth.

4. The herein described roller bearing, the same comprising an outer casing provided with an annular rib projecting from its inner face, anti-friction rollers having bearing faces of greater Width than the bearing face of said rib, the roller bearing faces being normally v separated from the inner face of the casing and being each provided with a groove for receivin g the bearing rib, and a band encircling the corresponding ends of said rollers, consisting of a strip of spring material having its adjacent ends lapped one upon the other, substantially as and for the purpose specified.

5. The herein described roller bearing, the same comprising an outer casing provided with an annular rib projecting from its inner face and formed of angular cross section, antifriction rollers having bearing faces of greater Width than the bearing face of said rib, the roller bearing faces being normally separated from the inner face of the casing and being each provided With a groove for receiving the bearing rib, a divider for separating the adjacent faces of said rollers, and a band encircling the corresponding ends of said rollers, substantially as and for the purpose set forth. 6. The herein described roller bearing, the same comprising an outer casing formed with an annular shoulder on its inner face, a ring at one side of said shoulder formed with a bearing rib projecting inwardly, anti-frictionL ing rib, and an end wall for said casinghavingan inwardly extending flange for clamping the rib carrying ring against said annular shoulder of the casing, substantially as and for the purpose described.

7. The herein described roller bearing, the same comprising an outer casing formed with an annular'shoulder on its inner face, a ring at one side of said shoulder formed with a bearing rib projecting inwardly, anti-friction rollers having bearing faces of greater Width than the bearing face of said rib, the roller bearing faces being normally separated from the inner face of the casing and being each provided with a groove for receiving the bearing rib, an end Wall for said casing having an inwardly extending flange for clamping the rib carrying ring against saidannular shoulj der of the casing, and bands Vupon lopposite sides of the bearing ribencircling theopposite ends of said rollers, substantially as specified.4

8. The herein described roller bearing, the same comprising a casing-head, the contracted central portion of a casing projecting from said casing-head, an opposite casing-head removablyengaged with the projecting end of said contracted central portion, an annular rib projecting from the inner face of each of said heads, anti-friction rollers Within said casing heads having their bearing faces of greater Width than the bearing faces of said projecting ribs, the rollerlbearing facesbeing normally separated from the kinner faces of said enlarged heads and being each 'provided with a groove for receiving the bearing rib, substantially as and for the purpose specified.

9. The herein described roller bearing, the same comprising a casing-head, the contracted central portionof av casing projecting from said Icasing-head, `an opposite casing-head removably engaged With the projecting end of said contracted central portion, an annular rib projecting from the inner face of each of said heads, anti-friction rollers Within said casing heads having their bearing faces of greater Width than the bearing faces of said projecting ribs, the roller bearingl faces being normally separated from the inner faces of said heads and being each provided with a groove for receiving the bearing ribs, and dividers for separating the adjacent faces of said rollers, substantially as and for the purpose set forth.

10. The herein described roller bearing, the same comprising a casing-head the contracted Acentral portion of a casing projecting from said casing-head, an opposite casing-head removably engaged with the projecting end of said contracted central portion, an annular rib projecting from the inner face of each of said heads, anti-friction rollers WithinI said casing heads having their bearing faces of greater Width than the bearing faces of said projecting ribs, the roller bearing faces being normally separated from the inner faces of said heads and being each provided with a IOO groove for receiving the bearing ribs, and bands Within said casing heads encircling corresponding ends of said rollers, substantially as and for the purpose specified.

11. The herein described roller bearing, the same comprising a casing-head, the contracted central portion of a casing projecting from said casing-head, an opposite casing-head removably engaged with the projecting end of said contracted central portion, an annular rib projecting from Jche inner face of each of said heads, anti-friction rollers within said casing heads having Jheir bearing faces of greater width than the bearing faces of said projecting ribs,the roller bearing faces being normally separated from the inner faces of DAVID W. COPELAN D.

Vitnesses:

CLARK H. NORTON, M. BAXTER. 

